PHT - Model MIL-DTL-26482 - Circular Connectors - Brochure

DETAIL SPECIFICATION CONNECTORS, ELECTRICAL, (CIRCULAR, MINIATURE, QUICK DISCONNECT, ENVIRONMENT RESISTING), RECEPTACLES AND PLUGS, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the general requirements for two series of environment resisting, quick disconnect, miniature, circular electrical connectors (and accessories). Each series contains hermetic receptacles. The two series of connectors are intermateable when using power contacts and are not intermateable when using shielded contacts. When intermated, the minimum performance requirement for series 1 connectors will be met. 1.1.1 Part or Identifying Number (PIN). The PIN is constructed in the following manner. The following is an example of the PIN: MS3114 E 12 A 10 A P Y MS number (see supplement) Class (see 1.2.1) Shell size (see 1.2.2) Termination type & shell material (see 1.2.3, for hermetic receptacles only) Insert arrangement (see 1.2.4) Insert arrangement for shielded contacts (see 3.1, omit if not applicable) Contact style (see 1.2.5) Polarization position (see 1.2.6) INCH - POUND Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Columbus, ATTN: VAI, P.O. Box 3990, Columbus OH 43218-3990 or emailed to circularconnector@dscc.dla.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http://assist.daps.dla.mil. MIL-DTL-26482H 20 February 2007 SUPERSEDING MIL-C-26482G 5 September 1975 Reactivated after 5 October 2006 and may be used for new and existing designs and acquisitions. AMSC N/A FSC 5935 MIL-DTL-26482H 21.1.2 Series description. The connectors are identified as series 1 or 2 and are designed to provide contact protection during mating. a. Series 1 – Connector, bayonet coupling, solder or front release crimp removable contacts (125ºC). Series 1, hermetic are also available. (See 6.1 for intended use.) b. Series 2 – Connector, bayonet coupling, rear release crimp removable contacts (200ºC), (classes H, N, and W, 175°C). Series 2, hermetic connectors are available with nonremovable solder type contacts or crimp removable terminations (see 6.2). 1.2 Classification. 1.2.1 Class. The class and series of connectors are identified as shown in table I. TABLE I. Connector class and series. Series 1 (125°C) Series 2 (200°C) Series 2 (175°C) Class SolderFront release crimp removable contacts Rear release crimp removable contacts Solder Rear release crimp removable contacts A-Grommet seal, nonconductive X E-Grommet seal, conductive X X 1/ P-Potted seal, conductive X X H-Hermetic seal, conductive X X J-Insert seal with gland seal for jacketed cable, conductive X L-Fluid resistant, conductive electroless nickel 1/ 2/ X N-Hermetic seal, crimp termination conductive X F-Grommet seal with strain relief clamp conductive X X W-Cadmium plate, corrosive and fluid resistant, conductive X 1/ Class L is upgraded to 200°C and replaces class E, series 2, rear release, crimp removable contacts. 2/ Class L is for space applications only. 1.2.2 Shell size. Shell sizes are as specified on the applicable MS standard. MIL-DTL-26482H 31.2.3 Termination type and shell material (hermetic receptacles only). The type of termination and shell material are designated as follows: Type A – Solder cup termination (may be hermetic) – stainless steel shell (series 1 and 2). Type B – Eyelet termination – stainless steel shell (series 1 and 2). Type C – Solder cup termination (may be hermetic) – ferrous alloy shell (series 1 and 2). Type D – Crimp termination (may be hermetic) – ferrous alloy shell (series 2). Type Y – Eyelet termination – ferrous alloy shell (series 1). 1.2.4 Insert arrangement. The insert arrangement showing quantity, size, service rating, and positional location of contacts are as specified in MIL-STD-1669. 1.2.5 Contact style: a. Connectors ordered with standard contact arrangement in accordance with MIL-STD-1669 are as follows: C – Feedthrough contact. P – Pin contacts. S – Socket contacts. The C, P, and S designators are used to indicate that connectors will be used with full compliments of the applicable standard contacts in accordance with MIL-STD-1669. The connectors that accommodate crimp removable contacts (P and S) may be ordered without standard contacts by adding an appropriate note on the purchase order; however, the connector PIN and the marking requirements remain unchanged (see 6.3). b. Connectors used with other than standard contact arrangements in accordance with MIL-STD-1669 are as follows: A - Less pin contacts B - Less socket contacts. The A or B designators are used to indicate that the connectors will be used with other than standard contacts in accordance with MIL-STD-1669 (example: shielded, coaxial thermocouple, fiber optic contacts). The A and B designators are part of the connector PIN and should be marked on the connectors. The standard contacts should not be supplied with the connectors. The contacts that will be used with the connectors should be ordered separately (see 3.7.1 and 6.3). NOTE: When other than standard power contacts are used, the requirements stated herein may not be met. 1.2.6 Insert position. The insert position is the angular position of the insert relative to the master key or keyway of the shell. Insert positions other than normal are indicated by the letter shown on the insert arrangements specified in MIL-STD-1669. 1.2.7 Military PIN. The military PIN for qualified connectors in accordance with MIL-DTL-83723, series 1, that are provided in accordance with this specification, should conform to the latest issue in effect of MIL-DTL-83723 and 1.2.1 herein (see 3.7.1 for identification). MIL-DTL-26482H 41.3 Temperature. 1.3.1 Temperature (series 1). Series 1 connectors are rated for specified operation within a temperature range of -55ºC (-67ºF) to 125ºC (257ºF). The upper temperature is the maximum internal hot spot temperature resulting from any combination of electrical load and ambient temperature. 1.3.1.1 Insulation resistance (series 1). Insulation resistance varies with temperature as follows (see figure 1): Hot spot temperature Minimum insulation resistance25ºC (77ºF) 5,000 megohms 105ºC (221ºF) 12 megohms 125ºC (257ºF) 3 megohms 1.3.1.2 Service life (series 1). Service life varies with temperature as follows (see figure 2): Hot spot temperature Service life25ºC (77ºF) continuous 105ºC (221ºF) 1,000 hours 125ºC (257ºF) 250 hours 1.3.2 Temperature (series 2). Series 2 connectors are capable of specified operation within a temperature range of -55ºC (-67ºF) to 200ºC (392ºF) under any combination of electrical load and ambient temperature. These connectors are rated for specified operation for 1,000 hours, at 200ºC (392ºF) maximum internal hot spot temperature. 1.3.2.1 Insulation resistance (series 2). Insulation resistance limits vary with temperature as follows (see figure 3): Hot spot temperature Minimum insulation resistance25ºC (77ºF) 5,000 megohms 200ºC (392ºF) 500 megohms 1.3.2.2 Service life (series 2). Service life varies with temperature as follows (see figure 4): Hot spot temperature Service life25ºC (77ºF) continuous 200ºC (392ºF) 1,000 hours 1.4 Wire range accommodations. The wire range given in table II is to be accommodated by series 1 and series 2 connectors as indicated. MIL-DTL-26482H 5TABLE II. Wire range accommodations. 1/ OD of finished wire, inch (mm) 2/ Series 1 Series 2 Wire Barrel Size Wire Size Min Max Min Max 20 24 22 20 .047 (1.19) 3/ .083 (2.11) .040 (1.02) .083 (2.11) 16 20 18 16 .066 (1.68) .109 (2.77) .053 (1.35) .103 (2.62) 12 14 12 .097 (2.46) .142 (3.61) .097 (2.46) .158 (4.01) 1/ Dimensions are in inches. Metric equivalents are given for information only. 2/ Wire reference: SAE-AS22759. 3/ Minimum OD for solder contact connectors is .060 inch (1.52 mm). MIL-DTL-26482H 6 FIGURE 1. Minimum insulation resistance vs hot spot temperature (series 1). FIGURE 2. Expected service life vs hot spot temperature (series 1). MIL-DTL-26482H 7 FIGURE 3. Insulation resistance vs hot spot temperature (series 2). FIGURE 4. Expected service life vs hot spot temperature (series 2). MIL-DTL-26482H 82. AP PLICABLE DOCUMENTS 2.1 General. The docu ts ted in this section are specified in sections 3, 4, or 5 of this men lispecification. This section doe n other sections of this specification or info a ompleteness of this list, documen they must meet all specified requirements s 3 o entss s not include documents cited irecommended for addition rm tion or as examples. While every effort has been made to ensure thec t users are cautioned that documents cited in section , 4, r 5 of this specification, whether or not they are listed. 2.2 Government docum . 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and andbooks form a part of this document to the extent specified herein. Unless otherwise specified, the E RTMENT OF DEFE SE , Grades JP-4 and JP-5 nthetic Base ically Cured 5 IL-DTL-2252023699IL-I-81969/14 MIL-I-81969/17 - Installing And Removal Tools, Connector Electrical Contact, Type I, IL-I-81969/19 onnector Electrical Contact Type II, IL-I-81969/30 nector Electrical Contact, Type II, 87937202 -STD-790 y and High Reliability Qualified Products List 10 rations and Laboratory Tests MIL-STD-889 - Dissimilar Metals and Electronic Parts MIL-STD-1669 - Insert Arrangements for MIL-C-26482 Environment Resisting, Circular nt Resisting), Receptacle, (Box Mounting Flange, Bayonet Coupling, Solder Contact), (Series 1) Bayonet Coupling), (Series 1) hissues of these documents are those cited in the solicitation or contract. D PA N SPECIFICATIONS MIL-PRF-5606 - Hydraulic Fluid, Petroleum Base, Aircraft, Missile and Ordnance MIL-DTL-5624 - Turbine Fuel, Aviation MIL-PRF-7808 - Lubricating Oil, Aircraft Turbine Engine, Sy MIL-PRF-8516 - Sealing Compound, Polysulfide Rubber, Electric Connectors and Electric Systems, Chem MIL-A-862 - Anodic Coatings for Aluminum And Aluminum Alloys M - Crimping Tools, Terminal, Hand, Wire Termination, General Specification for MIL-PRF- - Lubricating Oil, Aircraft Turbine Engines, Synthetic Base M - Installing And Removal Tools, Connector Electrical Contact, Type III, Class 2, Composition B Class 1, Composition C M - Installing And Removal Tools, C Class 1, Composition C M - Installing And Removal Tools, Con Class 2, Composition C MIL-PRF- - Cleaning Compound, Aerospace Equipment DEPARTMENT OF DEFENSE STANDARDS MIL-STD- - Test Methods for Electronic and Electrical Component Parts MIL - Established Reliabilit (QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications MIL-STD-8 - Environmental Engineering Conside MIL-STD-1285 - Marking of Electrical Electrical Connectors MS3112 - Connectors, Electrical, (Circular, Miniature, Quick Disconnect, Environme MS3119 - Connectors, Electrical, (Circular, Miniature, Quick Disconnect, Environment Resisting), Receptacle, (Thru-Bulkhead Mounting Flange, MIL-DTL-26482H 9- Connectors, Receptacle, Electric, Crimp-Type, Box Mounting, Flange, No. 4 Holes, Bayonet Coupling nting, Flange, No. 4/6 Holes, Bayonet Coupling or MIL-C-26482 and MIL-C-81703 (Navy) Electrical Connectors - Test Gage, MIL-C-26482 Series 1 or MIL-C-81703 Series 2 Contact Retention Feature 1 eries 2 or MIL-C-81703 Series 3 Contact ntion Feature s N) or MIL-C-81703 Series 3 ature (Copies of these documents are available online at http://assist.daps.dla.mil/quicksearch/ MS3122 MS3127 - Connectors, Receptacle, Electric, Crimp-Type, Box Mou MS3155 - Connector, Electric, Rear Accessory Design Standard MS3187 - Plug, Sealing, F MS3460 MS346 - Test Gage, MIL-C-26482 S Rete MS3462 - Test Gage, MIL-C-26482, Series 2 (Clas (Class N) Contact Retention Fe MS27488 - Plug, End Seal, Electric Connector (See supplement 1 for list of specification sheets). or ht pt ://assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 No ent publi sn-Governm cation . Th e extent specified on or contract. ASME INTERNATIONAL ASME-B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay) (Copies of these documents are availab p://www.asme.orge following documents form a part of this document to thherein. Unless otherwise specified, the issues of these documents are cited in the solicitatile online at htt or from the ASME International, Three Park Avenue, New York, NY 1001 ASTM INTERNATIONAL ASTM B85 - AluminumASTM - ASTM A342/A342M - Materials, f ASTM - in, ElectrASTM - uel, Auto (Copies of these documents are availa .astm.org6-5990.) -Alloy Die Castings B339 Pig Tin Feebly Magnetic, Permeability o B545 T odeposited Coatings of D4814 F motive Spark-Ignition Engine ble at http://www or ASTM International, 100 Barr Harbor Dr 700, est Cons ELEC nt Classifications. nectors. EIA-364-05 - ce Test Procedure onnectors. ive, PO Box C W hohocken, Pennsylvania 19428-2959.) TRONIC INDUSTRIES ALLIANCE (EIA) EIA-359 - EIA Standard Colors for Color Identification and Coding. EIA-364 - Electrical Connector/Socket Test Procedures Including EnvironmeEIA-364-03 - Altitude Immersion Test Procedure For Electrical ConContact Insertion, Release and Removal For For Electrical Connectors. EIA-364-06 - Contact Resistance Test Procedure For Electrical C MIL-DTL-26482H 10EIA-364-13 - Mating and Unmating Forces Test Procedure For Electrical EIA-364-17 - Temperature Life With or Without Electrical Load Test Procedure EIA-364-20 - Connectors, Sockets and Coaxial Contacts, Electrical, EIA-364-21 - ctors, Sockets, and Coaxial Contacts. rs. EIA-364-26 - Connectors, Contacts and Sockets, Electrical, Salt Spray Test Procedure For. EIA-364-27 - Connectors, Electrical, Mechanical Shock (Specified Pulse) Test EIA-364-28 - Connectors and Sockets, Electrical, Vibration Test Procedure dure For Electrical Connectors. - Connectors and Sockets, Electrical, Humidity Test Procedure For. ck nn or. 4-42 For Electrical Connectors. (Connectors. EIA-364-14 - Ozone Exposure Test Procedure For Electrical Connectors. For Electrical Connectors and Sockets. Withstanding Voltage Test Procedures For. Insulation Resistance Test Procedure For Electrical ConneEIA-364-24 - Maintenance Aging Test Procedure For Electrical ConnectoEIA-264-25 - Probe Damage Test Procedure For Electrical Connectors. Procedure For. For. EIA-364-29 - Contact Retention Test ProceEIA-364-31 EIA-364-32 - Connectors and Sockets, Electrical, Thermal Sho(Temperature Cycling) Test Procedure For. EIA-364-35 - Co ectors, Electrical, Insert Retention Test Procedure FEIA-36 - Impact Test ProcedureEIA-557 - Statistical Process Control Systems. Copies of these documents are available online at http://www.eia.org or from the Electronic Industries Alliance, Technology Strategy & Standards D 201.) FOR INT NECTIN GING ELECTRONIC CIRCUITS - ElectronSolders (Copie of th se documents e avai /www.ipc.orgepartment, 2500 Wilson Boulevard, Arlington VA 22INSTITUTE ERCON G AND PACKA J-STD-006 ic Grade Solder Alloys and Fluxed and Non-Fluxed Solid For Electronic Soldering Applications, Requirements For. s e ar lable online from http:/ or from the Institute for Interconne ing Electroni ) NCSL INTER ATIONAL CSL 540.1 - rat (Copie nts e avaicting and Packag c Circuits, 2215 Sanders Road, North Brook, IL 60062-6135.NN Z Labo ories, Calibration, and Measuring and Test Equipment. s of these docume ar lable online at http://www.ncsli.org or from NCSL International 2 5 10 Boulder, Colorado 80301-540499 Wilderness Place, Suite 7 ) MIL-DTL-26482H 11SAE I SAE-AMS-QQ-N-290 SAE-AMS-QQ-P-416 SAE-AMS-QQ-S-763 re, Shapes, And Forgings; Corrosion SAE-AMS1424 onnectors rpose of Qualification. SAE-AS22759 - Wire, Electric, Fluoropolymer-Insulated, Copper or Copper , Electroless Nickel, Requirements For. SAE-AS39029 - Contact, Electrical Connector, General Specification For. ition A. - Contacts, Electric, Connector, Pin, Crimp Removable, Composition D, Type 3 (200ºC), Shielded Cable Applications, Size 12. ovable, SAE-AS39029/9 - Contacts, Electric, Pin, Crimp Removable, Composition C, ble, Thermocouple, (For MIL-C-26482 Series 2, MIL-C-81703 Series 3, MIL-C-83723 Series 3, and MIL-C-83733 ntacts, Electric, Socket, Shielded, Crimp, Removable (Size 8). Composition A, 200ºC (Size 12). SAE- lectric, Socket, Shielded, Crimp, SAE- tact, Electrical Connector, Pin, Crimp Removable, or MIL-C-26482 Series 1, MIL-C-26500 and MIL-C-26518 t, Crimp Removable, (For MIL-C-26482 Series 1, and MIL-C-26500 Connectors). Specification For. (Copies of these documents are available at http://www.sae.orgNTERNATIONAL - Nickel Plating (Electrodeposited). - Plating, Cadmium (Electrodeposited). - Steel Bars, Wi Resistant. - Fluid, Deicing/Anti-Icing, Aircraft, SAE Type I. SAE-AMS 2422 - Plating, Gold. SAE-AIR4789 - Evaluating Corrosion Testing of Electrical C and Accessories for the Pu Alloy. SAE-AMS-C-26074 - Coatings SAE-AS39029/4 - Contacts, Electric, Pin, Crimp Removable, ComposSAE-AS39029/5 - Contacts, Electric, Socket, Crimp Removable, Composition A. SAE-AS39029/7 SAE-AS39029/8 - Contacts, Electric, Connector, Socket, Crimp Rem Composition D, Type 3 (200ºC), Shielded Cable Applications, Size 12. Thermocouple. SAE-AS39029/10 - Contacts, Electrical Connector, Socket, Crimp Removea Connectors). SAE-AS39029/23 - Contacts, Electric, Pin, Shielded, Crimp, Removable (Size 8). SAE-AS39029/24 - CoSAE-AS39029/25 - Contacts, Electric, Pin, Shielded, Crimp, Removable, AS39029/26 - Contacts, E Removable (Size 12).AS39029/31 - Con (F Connectors). SAE-AS39029/32 - Contacts, Electrical Connector, Socke SAE-AS31971 - Pin, Gage, For Socket Contact Engagement Test. SAE-AS85049 - Connector Accessories, Electrical General or SAE World Headquarters, 400 Commonwealth Drive, Warrendale , PA 15096-0001.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes recedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. pMIL-DTL-26482H 123.1 Specification sheet3. REQUIREMENTS . The individual item requirements shall be as specified herein and in ac ication and the specification sheet, the latter shall govern. cordance with the applicable specification sheet. In the event of any conflict between the requirementsof this specif 3.2 Qualification. The connectors furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before contract award (see 4.3 and 6.5). Upon application for qualification testing, the qualifying activity shall verify that the manufacturer has established written procedures to assure actual connector performance to the requirements of this specification. Emphasis shall be on the molded plastic retention system piece parts prior to assembly into e connector. These procedures shall contain: b. Acceptable levels for: mixtures and chemical tests. (2) Pureness of materials. n molded plastic retention disc based on analysis of (a). d. Insertion and removal forces for pin and socket contacts in plastic disc. e minimum requirements for molded lastic contact retention systems prior to assembly into connectors for that manufacturer. th a. Analysis of minimum/maximum dimensions of contacts and molded plastic retention discs. (1) Plastic(3) Flash control in plastic parts. (4) Method for flash removal. c. Contact retention tests oWhen approved by the qualifying activity, these shall become thp3.2.1 Quality. 3.2.1.1 Statistical process control (SPC). The contractor shall implement and use SPC techniques in the manufacturing process for parts covered by this specification. The SPC program shall be developed and maintained in accordance with EIA-557. The SPC program shall be documented and maintained as part of the overall reliability assurance program as specified in MIL-STD-790. 3.3 Materials. Materials which are not specified (see 3.1), or which are not specifically describherein shall be of the lightest practical weight and shaed ll be suitable for the purpose intended. 3.3.1 Fungus resistance. Materials used in the construction of these connectors shall be fungus inert(see 4.1.3). 3.3.2 Dissimilar metals. When dissimilar metals are used in intimate contact with each other, protection against galvanic corrosion shall be provided. The use of dissimilar metals in contact, which tend toward active galvanic corrosion (particularly brass, copper, or steel used in contact with aluminum r aluminum alloy) is not acceptable. However, metal plating of dissimilar base metals to provide similar or itted. The use of dissimilar metals separated by a suitable insulating aterial is also permitted. Dissimilar metals and compatible couples are defined in accordance with Mo suitable abutting surfaces is permmIL-STD-889. 3.3.3 Nonmagnetic materials (except classes H and N). The relative permeability of the connector assembly shall be less than 2.0µ when measured with an indicator in accordance with ASTM 342/A342M. 3.3.4 Contact material. MIL-DTL-26482H 133.3.4.1 Series I (except class H). Nonremovable contacts shall be made of suitably conductive materials. Hoods shall be made of passivated stainless steel. Springs shall be suitably protected or made from noncorrosive materials. 3.3.4.2 Classes H and N. Contacts shall be made of ferrous alloy or as specified. The materials ushall be compatible with the reqsed uirements of this specification. 3.3.5 Contact finish. When tested as specified in 4.6.53, contact finish shall meet the requirements s specified herein. a 3.3.5.1 Series 1 solder contact finish (except class H). Nonremovable contacts shall have a finish as pecified in 3.3.5.1.1 or 3.3.5.1.2. Each desired finish shall be qualified. s 3.3.5.1.1 Overall finish. Contact body shall be gold plated in accordance with SAE-AMS 2422, type II, grade C, class 1, 50 microinches minimum (1.27 µm), over a suitable underplate except silver shall not be sed. Accessory members of the socket contacts need not be plated, but shall comply with the re3.3.5.1.2 Localized finishuquirements for dissimilar metals specified in 3.3.2. . Contact body shall have gold in accordance with SAE-AMS 2422, type II, grance with SAE-AMS-QQ-N-290, lass 2, 30 to 150 microinches (0.762 to 3.81 µm) thick. Gold discoloration in areas other than X and Y is acade C, class 1 applied to areas X and Y (see figure 7), as applicable. All other body surfaces shall be finished with gold in accordance with SAE-AMS 2422, any type and grade (no thickness specified). The entire surface of the contact body shall be nickel underplated In accordcceptable. 3.3.5.2 Series 1 and 2, class H. 3.3.5.2.1 Types A and B, and type C (series 2). Nonremovable contacts shall be gold plated to a of 50 microinches (1.27 µm) in accordance with SAE-AMS 2422, over a suitable underplate xcept silver shall not be used. Wire marks on the back of the contact around the “nonfunctional” outside di3.3.5.2.2 Types C and Y (series 1)minimum eameter of the wire well caused by electrical contact for plating are permissible. . Contact plating for class H, types C and Y, shall be 50 m in accordance with ASTM 339 and ASTM B545. A preliminary plating of another metal is permissible. Wire marks on the back of th for 3.3.6 RFI finger springicroinches (1.27 µm) minimum of electrodeposited tin (no organic brightener) Be contact around the “nonfunctional” outside diameter of the wire well caused by electrical contact plating are permissible. . RFI finger springs shall be made of a spring temper copper alloy suitably pr3.3otected to prevent corrosion. .7 Dielectric materials. 3.3.7.1 Insert and grommet. Insert and grommet materials shall be high grade dielectric having ardness, electrical, and mechanical characteristic suitable for the purpose intended. 3.3.7.1.1 Rigid (except classes H and N)h. Rigid dielectric materials shall be high grade having el3.3.7.1.2 Rigid (classes H and N)ectrical and mechanical characteristics suitable for the purpose intended. The impact strength shall be such that the material shall not chip, crack, or break during assembly or normal service. . The rigid dielectric materials in hermetic connectors shall be of a single piece of vitreous material. MIL-DTL-26482H 143.3.7.1.3 Resilient. Resilient dielectric materials shall conform to the requirements specified herein. The resilient faces of series 1 and 2 connectors shall be designed so that the performance requiremare met when mated to counterpart connectors ofents either series 1 or 2. 3.3.7.1.4 Insert faces (series 1). Insert faces or blankets to a minimum depth of 0.080 inch (2.03 mm) 0.033 inch (0.84 mm) on class H shall be resilient within a Shore A range of 35-85 for crimp contact connectors and class H connectors and 65-85 for solder contact connectors. 3.3.7. s (ser 1.5 Pin insert face ies 2). Pin insert faces shall be resilient within a Shore A range of 30 to 55. 3.3.8 rm (se es 1)Potting fo ri . ateria r s Potting forms shall be made of translucent nylon. The form shall incorporate a means for attachment to the connector. 3.3.9 M l and finish fo hells, coupling rings and metallic accessories. 3.3.9 lass.1 Series 1 (except c H). Shells, coupling rings, and protective covers shall be made of high gra ies (backsh3.3.9.2 Shells, coupling rings, and accessories (backshells) (series 2)de aluminum alloys. Die castings, if used, shall be in accordance with ASTM B85. Accessorells) shall be in accordance with SAE-AS85049. . a ct extruded, machined or die cast aluminum alloy. 3.3.9.3 Shells (classes H and N). Shells, coupling rings, and accessories shall be made of impab. Accessories (backshells) shall be in accordance with SAE-AS85049. . Shell materials shall be as specified (see 3.1). 3.3.9.4 Finish (series 1 except class H). Aluminum parts and external screws shall be cadmium platein accordance with SAE-AMS-QQ-P-416 type II, class 3 except that a preliminary plating of another metais permissible. The resulting find l ish shall be olive drab (light to dark) and shall be electrically conductive. 3.3.9.4.1 Ferrous alloy (series 1, class H). Shells shall be tin plated in accordance with ASTM B339 hall be 3.3.9.5 Finish (series 2and ASTM B545. Preliminary plating of another metal is permissible. The resultant finish ssuitable for soft soldering to a mounting surface. ). Metal parts shall be of a corrosion resistant material or be protected to meet th all be as kel in heat test. Use of a suitable under plate is permissible. dmium plate in accordance with QQ-P-416 over a suitable underplate to withstand 500 hours salt spray. Resultant color to e performance requirements of this specification. The type of finish and class designation shfollows: Classes H and N - .0001 inch minimum tin in accordance with MIL-T-10727 over nic accordance with QQ-N-290. Class L - Electrically conductive, electroless nickel plating in accordance with MIL-C-26074, class 3 for molded/extruded alloy and class 4 for treated alloys, grade B, finish shall withstand 48 hours salt spray Class W (175°C) - Ca be olive drab, conductive. MIL-DTL-26482H 15Class A - Hard, anodic, nonconductive in accordance with MIL-A-8625, type III, .0008 inch minimum thick. 3.3.10 Bayonet pins. Bayonet pins shall be made of passivated stainless steel in accordance ith SAE-AMS-QQ-S-763. w3.3.11 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically dvantageous life cycle costs. 3.4 Design and constructiona . Connectors and accessories shall be designed and constructed to ithstand normal handling incident to installation and maintenance in service. Connector terchangeability control dimensions shall be as specified on figure 5. Rear accessory interchangeability ontrol dimensions of series 2 connectors shall be as specified on figure 6. 3.4.1 Contactswinc. Contacts shall be so designed that neither the pins nor the sockets will be amaged during mating of counterpart connectors. A quantity of crimp contacts consisting of the normal omplement, plus one spare contact for connector arrangements having 26 contacts or less and two pares for arrangements over 26 contacts shall be included in the unit package. Unless otherwise pecified, connectors shall be supplied with contacts (see 1.2.5 and 6.3). 3.4.1.1 Solder contacts (series 1)dcss. Solder contacts shall conform to the dimensions on figure 7 and shall be nonr g no components will be damaged. A vent hole or equival nt may be provided to prevent air entrapment during soldering. 3.4.1.2 Crimp contacts (series 1)emovable from the insert. Solder cups shall be so designed that during solderine. 3.4.1.2.1 Crimp power contacts. Crimp power contacts shall be qualified to and in accordance with SAE-AS39029/31 or SAE-AS39029/32. 3.4.1.2.2 Crimp shielded contacts. Size 8 shielded contacts shall be qualified to and in accordance with SAE-AS39029/23 or SAE-AS39029/24. Size 12 shielded contacts shall be qualified to and in accordance with SAE-AS39029/25 or SAE-AS39029/26. Unless otherwise specified, shielded contacts shall not be supplied with the connector (see 6.3). 3.4.1.2.3 Insertion and removal tools (series 1). The individual contacts shall be positively retained in the connector when installed with the applicable contact insertion tools in accordance with MIL-I-81969/17 and MIL-I-81969/19. The individual contacts shall be capable of being removed from the connector when using the applicable contact removal tools in accordance with MIL-I-81969/17 and MIL-I-81969/19. MIL-DTL-26482H 16 Series 1 Receptacle Connector Series 1 Plug Connector Series le 2 Receptac Connector 2 Plu onnec Series g C tor IGURE 5. Connector intermateability control dimensions (serie s 2) F s 1 and serie . MIL-DTL-26482H 17 FIGURE 5. Conn ateability control dim ies 2)ector interm ensions (ser 1 and series – Continued. Detail A Detail B MIL-DTL-26482H 18 Applies to series 1 only 1 n ly only 1 o ly 1 on 1 and 2 1 only Shsize A package location (see note 1)C ckinseati ct on4)ell B So et D Pinrt contaloc on locati E (see note insert F Pin location 8 10 12 14 16 18 .392 (9.96) .372 (9.45) .153.075 (1.91) (0.005 (0 (3.89) .025 .64) .13) .050 (1.27).030 (0.76)20 22 )) .133 (3.38 .093 (2.36 24 .454 (11.53) .434 (11.02) .215 (5.46) .137 (3.48) .087 (2.21) .067 (1.70) 14.172 (4.37) .132 (3.35) .112 (2.84).092 (2.34).085 (2. 6) .055 (1. 0) Applies to series 1 and 2 1 and 2 1 only 1 only 1 only 1 and 2 Shell size G bay dia H bay location Pin contact location K Pin insert location L (see note 1) M Socket insert location J 8 10 12 14 16 18 .095 (2.41) .065 (1.65) .332 (8.43) .312 (7.92) .357 (9.07) .337 (8.56) 20 22 .084 (2.13) .076 (1.93) .100 TP (2.54) 24 .131 (3.33) .123 (3.12) .109 TP (2.77) .157 (3.99) .127 (3.22) .394 (10.01).374 (9.50) .143 (3.63) .065 (1.65) .419 (10.64).399 (10.13) FIGURE 5. Co r interma ility contro ensions ( 1 and se )nnecto teab l dim series ries 2 – Continu ed. MIL-DTL-26482H 19 t Applies o series 1 and 2 n 1 a d n a 2 1 a d 2 1 nd 2 1 and 2 Shell size R DiayT OD N shoulder P max inlocation diasert sh Iell d keS over ways shell 8 48 (11.89) .285 (7.24) .361 .367 (9.32) .417(9.17) .406(10.59) .47(10.31) .46 (12.04) 10 15 (14.86) .402 (10.21) .489 (.495 (12.57) .54512.42) .534 (13.84) .59 (13.56) .58 (15.01) 12 5.516 (13.11) .606 (.612 (15.54) .69415.39) .683 (17.63) .75 (17.35) .741 (19.08) (18.92) 14 .641 (16.28) .731 (.737 (18.72) .81918.57) .808 (20.80) .87 (20.52) .876 (22.25) 0 (22.10) 16 .766 (19.46) .862 (21.89) .944 (23.98) .933 (23.70) 1.001 (25.43) .995 (25.27) .856 (21.74) 18 .855 (21.72) .96 ) .961 (24.41) 1.041.033 4) 1.1261.120 (2 ) .363 (9.27) .343 (8.71) 7 (24.56 4 (26.52) (26.2 (28.60) 8.4520 .980 9) 1.09 4) 1.08 8) 1.169 ) 1.15 ) 1.251 (31.245 (24.82 .76 ( 7.5 (272 (29.698 (2 .4191.78) (31.62) 22 1.105 8.07) 1.217 0.91) 11.294 (3 .87) 1.21.376 (34.95) 1.3 (2(3.211 (30.76) 283 (32.59) 70 (34.80) 24 .425 (10.79) ) ) 11.336 (33.93) 1.41.408 (35.76) 1.51.495 (37.97) .405 (10.291.229 (31.22.342 (34.09) 19 (36.04) 01 (38.13) FIGURE 5. Connector intermateability control dimensions (series 1 and series 2) – Continued. MIL-DTL-26482H 20Applies to series 1 and 2 1 and 2 1 and 2 1 and 2 1 and 2 1 and 2 Shell size U dia over bays V cpig R groove dia W cpig R ID X dia over keys Y shell OD Z min shell ID 8 .563 (14.30) .547 (10.89) .581 (14.76).570 (14.48).486 (12.34).480 (12.19).403 (10.24).392 (9.96) .358 (9.09) .352 (8.94) .292 (7.42) 10 .680 (17.27) .664 (16.86) .702 (17.83).691 (17.55).607 (15.42).601 (15.27).531 (13.49).520 (13.21).486 (12.34) .480 (12.19) .409 (10.39)12 .859 (21.82) .843 (21.41) .876 (22.25).865 (21.97).766 (19.46).760 (19.30).680 (17.27).669 (16.99).598 (15.19) .592 (15.04) .523 (13.28)14 .984 (25.00.) .968 (24.59) 1.000 (25.40).989 (25.12).890 (22.61).884 (22.45).805 (20.45).794 (20.17).723 (18.36) .717 (18.21) .648 (16.46)16 1.108 (28.14) 1.092 (27.94) 1.125 (28.58)1.114 (28.30)1.015 (25.78)1.009 (25.63).930 (23.62).919 (23.34).848 (21.54) .842 (21.39) .772 (19.61)18 1.233 (31.32) 1.217 (30.91) 1.250 (31.75)1.239 (31.47)1.141 (28.98)1.135 (28.83)1.030 (26.16)1.019 (25.88).948 (24.08) .942 (23.93) .862 (21.89)20 1.358 (34.49) 1.342 (34.10) 1.1.364 (34.65) 1.259 ( ))1.144 (29.06)1.073 (27.25) 1.067 (27.10) .987 (25.07)375 (34.93) 1.265 (32.13) 1.155 (29.34 31.9822 1.483 (37.67) 1.467 (37.26) 1.500 (38.10)1.4891.390 (35.31) 1.280 (32.51))1.198 (30.43) 1.192 (30.28) 1.111 (28.22) (37.82) 1.384 (35.15) 1.269 (32.2324 1.610 (40.89) 1.594 (40.49) 1.629 (41.38)1.618 (41.10)1.515 (38.48)1.509 (38.33)1.405 (35.69)1.394 (35.41)1.323 (33.60) 1.317 (33.45) 1.237 (31.42) Applies to series 2 only 2 only 2 only 1 and 2 2 only Shell size AA (se ) CC socinsert FF in insert GG groove KK pin insert e note 5 ket p bay 8 10 12 14 16 18 .335 (8.51) .315 (8.00) .022 (0.56) .005 (0.13) .045 (1.14) .025 (0.64) .334 (8.48) .317 (8.05) 20 22 .106 (2.69) .089 (2.26) 24 .397 (10.08) .377 (9.58) .084 (2.13) .067 (1.70) .107 (2.72) .087 (2.21) .153 (3.89) .136 (3.45) .396 (10.06) .379 (9.63) FIGURE 5. Connector intermateability control dimensions (series 1 and series 2) – Continued. MIL-DTL-26482H 21 Receptacle keyways and bayonet pins Plug keys and bayonet grooves FIGURE 5. Connector intermateability control dimensions (series 1 and series 2) – Continued. MIL-DTL-26482H 22 Inches mm Inches mm Inches mm .0035 .005 .009 .010 .015 .016 .022 .027 .035 .037 .040 .047 .048 .049 .051 .059 .060 0.089 0.13 0.23 0.25 0.38 0.41 0.56 0.69 0.89 0.94 1.02 1.19 1.22 1.24 1.29 1.50 1.52 .062 .070 .071 .080 .081 .084 .090 .092 .096 .100 .102 .108 .112 .114 .116 .118 1.65 1.78 1.80 2.03 2.06 2.13 2.29 2.34 2.44 2.54 2.59 2.74 2.84 2.90 2.95 3.00 .125 .133 138 .144 .146 .150 .175 .198 .204 .206 .210 .225 .269 3.18 3.38 3.51 3.66 3.71 3.81 4.44 5.03 5.18 5.23 5.33 5.72 6.83 NOTES: ’ and ‘L stance between end of shell and the point at which a gage pi c ameter the mating are face fir socke ing (Applies to series 1 only). 2 eta ’ a l tac serdiameters, red d diamete s pp n f ran s t y)’ d p d poi g (ApplieA w riesim e e io FIGURE 5. Connector intermateability control dimensions (series 1 and series 2) 1. ‘Bdi’ di asn having the samt contact spre basicontact and a squ st engages. D ils ‘A’ and ‘B pply to both p ugs and recep les (applies to ies 2 only). 3. ‘XX’ where spa ace dlicable MS cooes not permit use of normal nector sheets ucegements (Appliers are uo series 2 onled. Refer to . or affected ar4. ‘E istance from lug shell shoul er to locking nt of coupling rin 5. ‘As to series 1 a’ initial contactnd series 2). ith static seal (Applies to se 2 only). 6. D ensions are in inches. Metric quivalents ar given for informat n only. – Continued. MIL-DTL-26482H 23 FIGURE 6. Rear accessory interchangeability control dimensions (series 2 only). E Dia. Shell Size A B C D thread (class 2) Receptacle (max) Plug (min) 8 .305 (7.75) .370 (9.40) .437 (11.10 .500-20 UNF .499 (12.67) .470 (11.94) )10 .405 (10.29) .497 (12.62) .572 (14.53 .625-24 UNEF .625 (15.88) .600 (15.24) )12 .531 (13.49) .613 (15.57) .687 (17.45 .750-20 UNEF .750 (19.05) .724 (18.39) )14 .665 (16.89) .738 (18.75) .812 (20.62 .875-20 UNEF .875 (22.23) .849 (21.56) )16 .790 (20.07) .863 (21.92) .937 (23.80 1.000-20 UNEF 1.000 (25.40) .974 (24.74) )18 .869 (22.07) .919 (23.34) .992 (25.20 1.0625-18 UNEF 1.062 (26.97) 1.030 (26.16))20 .994 (25.25) 1.044 (26.52) 1.117 (28.37) 1.1875-18 UNEF 1.187 (30.15) 1.154 (29.31)22 1.119 (28.42) 1.169 (29.69) 1.242 (31.55) 1.3125-18 UNEF 1.312 (33.32) 1.279 (32.49)24 1.244 (31.60) 1.294 (32.87) 1.367 (34.72) 1.4375-18 UNEF 1.437 (36.50) 1.404 (35.66) MIL-DTL-26482H 24Inches mm Inches mm .061 .070 .130 .190 .290 1.55 1.78 3.30 4.83 7.37 .869 .875 .919 .937 .974 22.07 22.23 23.34 23.80 24.74 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for informa FIGURE 6. Rear accessory interchangeab rol dimensions (series 2 only) .045 .046 1.14 1.17 .849 .863 21.56 21.92 tion only. ility cont - Continued. MIL-DTL-26482H 25 Classes E, P and J Cla Hss FIGURE 7. Solder type contacts (series 1). MIL-DTL-26482H 26 cke ac te res e o ove So t cont t with in gral p sure m mber (h od rem d) are plications of localiz has of ap ed finis . Socket contact with separate pressure member as primary current carrying interface areas of applications of localized finish. Socket contact with separate pressure members, areas of applications of localized finish FIGURE 7. Solder type contacts (series 1) – Continued. MIL-DTL-26482H 27 Pin contacts, areas of applications of localized finish F Size A ± .001 (0.02) max min + .063(1.60) min max ± .031(0.79) ± .0100.25) max min C D E - .016 G H J K L min (0.41) 20 .040 .100 .042 (1.02) (2.54) (1.07) .125 (3.18) .061 (1.55) .088 (2.24) .094 (2.39) .037 (0.94) .085 (2.16) .012 (0.30).042 (1.07) 16 .0625 (1.59) .130 (3.30) .069 (1.75) .096 (2.44) .116 (2.95) .054 (1.37) .115 (2.92) .065 (1.65) 12 .094 (2.39) .190 (4.83) .112 (2.84) .139 (3.53) .150 (3.81) .070 (1.78) .190 (4.83) ).096 (2.44) .188 (4.78) .125 (3.18) .020 (0.51 OTES: 1. Dimen2. Metr3. Dimension “F” equals length of maximum electr al contact (wiping) area plus .020 (0.51 mm) um wipe sha ximum “E” of mating pin us the al r . 4. hall be dance with .1. 5. Dimension “A” is me platin F older ty e contac es 1Nsions are in inches. ic equivalents are given for information only. icminimum. Maxim ll be equal to ma engagement minsphericSurface finishadius s in accor ASME-B46asured over g. IGURE 7. S p ts (seri ) – Continued. MIL-DTL-26482H 283.4.1.3 Through-bulkhe (series 1)ad contacts . The engaging en s in through-bulkhead ding details on sses E, P and J). ds of contact figure 7 (claconnectors shall conform dimensionally to corresponContacts shall be nonremovable. 3.4.1.4 Crimp contacts (series 2). 3.4.1.4.1 Crimp power contacts. Crimp power contacts shall be in accordance with SAE-AS39029/4, /5, /9, or /10. Neither the pin nor socket shall be damaged by twisting or forcing during mating and unmating of the connectors, or by insertion of contacts into or removal of contacts from the connector with the tools specified for insertion or removal. 3.4.1.4.2 Crimp shielded contacts. Size 12 shielded contacts shall be qualified to SAE-AS39029/7 or SAE-AS39029/8. Contacts shall be inserted and removed with the same tools used for the size 12 powecontacts. Unless otherwise specified, shielded contacts shall not be supplied with the connector (see 6.3). r 3.4.1.4.3 Insertion and removal tools (series 2). Tools required for assembly or disassembly of pin andsocket contacts into their connector inserts, shall be in accordance with MIL-I-81969/30 or MIL-I-81969/14. Unless otherwise specified, connectors shall be supplied with insertion and removal tools (see 6.3). 3.4.2 Insert design and construction. 3.4.2.1 Insert design and construction (series 1). Inserts shall be of voidless construction and shall be secured to prevent rotation within the shell. The inserts shall be nonremovable from the shell and shall be installed in the position in accordance with MIL-STD-1669. 3.4.2.1.1 Inserts for crimp contact connectors (series 1). In crimp contact connectors, the insert anire sealing grommet or insulating spacer shall be one integral part. d The design shall permit the removal nwa d reinsertion of individual contacts without any damage detrimental to connector performance to any part of the insert, including contact retention mechanisms or the sealing members, in accordance with MIL-I-81969/17 and MIL-I-81969/19 tools. 3.4.2.1.2 Contact arrangement (series 1). Contacts shall be arranged in accordance with IL-STD-1669. All solder cup openings shall be oriented so that theyM face the terminus of the indexing dius in accordance with MIL-STD-1669 and are at right angles to a center line coinciding with the dexing radius. 3.4.2.1.3 Contact spacingrain . Minimum nominal center-to-center spacing and minimum dielectric ickness, contact to shell, or cont s shown in table III. 3.4.2.1.4 Contact alignment (seth act to contact shall be in accordance with the valueries 1). Inserts for sock ll provide an overall side-play of the socket contacts of .0025 to .0075 inch (0.063 to 0.190 equired position to facilitate alignment with mating pin contacts. 3.4.2.1.5 Class H (series 1)et contacts sha mm) from the r. Contacts shall be fused int s inserts of class H connectors. A ent face shall be permanently bon e rfacial seal in mating. o the vitreounsure an interesili to the insert to ded MIL-DTL-26482H 29TABLE III. Minimum nominal contact spacing and minimum dielectric thickness. 1/ 2/ Service rating I Service rating II Dielectric Dielectric Connector s Contact size Center Center classeTo Center Rigid Resilient To Center Rigid Resilient F, J, L, , N 20 16 .130 (3.30) .168 (4.27) .205 (5.21) .008 (0.20) .162 (4.11) .190 (4.82) .012 (0.30) P12 .230 (5.84) H 20 16 .130 (3.30) .168 (4.27) .205 (5.21) .006 (0.15) .030 (0.76) .162 (4.11) .190 (4.82) .230 (5.84) .008 (0.20) .030 (0.7612 ) 1/ Di2mensions are in inches. / Metric equivalents are given for information only. 3.4.2.2 Insert design and construction (series 2). The inserts shall be rigid plastic and so designed and constructed with proper ing normal assembly or service. Hollow-type inserts shall not be used. The inserts shall be nonremovable, mechanically retained, and bonded to the shell with the design and construction such that all air paths between cavities are eliminated. The insert engaging faces shall be designed and constructed such that all air paths between cavities at the connector interfaces shall be eliminated when the connectors are mated. The inserts shall be so designed that positive locking of the contacts in the inserts is provided. Socket insert face shall be of a rigid plastic material. The design shall permit the removal and reinsertion of individual cond the sealing members, using the applicable tool in accordance with IL-I-81969/14 or MIL-I-81969/30. rts (series 2, class H)-sections and radii that they will not chip, crack or break durntacts without any damage detrimental to connector performance to any part of the insert, including contact retention mechanisms aM3.4.2.2.1 Inse . Class H receptacle inserts shall be so designed and constructed ith proper sections and radii that they will not readily chip, crack or break during normal assembly or se3.4.2.2.2 Inserts (series 2, class N)wrvice. The inserts shall be nonremovable from the shell and shall meet the requirements of this specification. . The inserts shall be bonded assembly forming a single unit; the frorack or break uring normal assembly or service. Hollow-type inserts shall not be used. The insert assembly shall be no3.4.2.2.3 Contact insertion and extraction (series 2, except class H)nt shall be of a vitreous material with a resilient face and the back shall be rigid plastic. The inserts shall be so designed and constructed with proper-sections and radii that they will not chip, cdnremovable such that all air paths between cavities are eliminated. The insert engaging connector interfaces shall be eliminated when the connectors are mated. The inserts shall be so designed that positive locking of the crimp terminals in the rigid plastic is provided. . The connector design shall pets into, and extraction of the contacts from the insert shall be accomplished from the wire side of the connector and with the aid of tools specified in 3.4.1.4.3. Insertion/extraction shall be po rmit individual insertion and extraction of contacts without removing the insert or sealing numbers. Insertion of the contacssible with a full complement of maximum OD wire (see table IV). MIL-DTL-26482H 30TABLE IV. Maximum wire diameter. 1/ 2/ Contact size Maximum OD 20 .083 (2.11) 16 12 .103 (2.62) .158 (4.01) 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 3.4.2.2.4 Contact arrangement identification. The contact positions shall be permanently designated incontrasting color on the front face of the insert and on the rear face of the wire sealing grommet as notedon the insert arrangement in accordance with MIL-STD-1669, and on figure 8. er cavity. e rs an eal barrier which extends 45º either side of the vertical centerline. Where NOTES: 1. Contact identification letters on rear grommet face of socket and pin insert shall be within 45º eithside of vertical centerline above the contact 2. Letters shall be placed on socket insert engaging face as shown. The letters shall be above thhorizontal centerline of the chamfered lead-ins. Where space precludes the application of letteever expanding orbital line is permissible. 3. Letters on the engaging face of the pin insert shall be on the raised seal barrier or at the base of the raised seal barrier above or beside the pin contact cavity. Letter shall not extend into the lower sector of the raised sspace precludes their application an expanding orbital line is permissible. 4. On outer row of contacts individual cavity identification may be deleted from those cavities where space precludes its application. 5. Underscoring of lower case letters is optional. FIGURE 8. Insert cavity identification locations (series 2). MIL-DTL-26482H 313.4.2.2.5 Insert position (series 2). The inserts shall be positioned with respect to the shell within the tolerance specified on figure 5. 3.4.2.2.6 Alternate insert position (series 2). Alternate insert position shall be in accordance with M3.4.2.2.7 Contact alignment (series 2)IL-STD-1669. . The alignment of pin contacts assembled into either plug or re3.4.2.2.8 Contact float (series 2)ceptacle shall be in accordance with MIL-STD-1669 when measured at the engaging end of the contacts. . Socket contacts assembled in either plug or receptacle shall allow for contact float of 0.0025 to 0.0075 inch (0.063 to 0.190 mm) from true alignment position. 3.4.3 Shell design (except classes H and N). The connector shells shall be seamless and shall retain eir inserts in a positive manner. The shells for the connectors shall be designed to accept and retain a ca cles. thble support or other accessory as shown in the applicable MS standard. Connectors shall be designedin such a manner as to incorporate a static peripheral seal located within the recepta 3.4.3.1 Jam nut receptacle shells. Jam nut mounting connectors shall be provided with a mountinand an “O” ring seal. 3.4.3.2 g nut Connector shell (series 2). The connector shell shall have a blue color band in accordance with EIA-359 indicating a rear release connector. The location of the color band shall be as specified ee 3.1). 3.4.3.3 Backshell accessories (series 2)(s . Backshells shall conform to requirements specified (see 3.1). Th met uld tor shell. Interchangeability dimensions shall e as specified in MS3155. e backshells shall have provision for safety wiring. In addition, they shall have wire sealing gromcompression capability. Backshells shall be free of any sharp edges or other configurations that cocause damage to wire extending through them. In addition, the RFI backshell shall provide metal-to-metal bottoming of the follower to the rear face of the connecb3.4.3.4 RFI finger spring (series 2) (RFI plugs). Grounding springs shall have a minimum of six fingerper inch. Spring fingers shall be designed to make electrical contact with the mating shall without interfering with proper engagement. The grounding springs shall be permanently fixed to the shell periphery. s 3.4.4 Engagement of connectors. Counterpart connectors of any arrangement and accessories shall be capable of being fully engaged and disengaged without the use of tools. Engagement of connectors shall be n of pins into sockets and proper sealing of the mating insert faces. Full engagem by an audible sound at the completion of the coupling cycle, and a positive detent s coupling mechanism to lock connectors in the engaged position. defined as full insertioent shall be indicatedhall be included in the3.4.4.1 Coupling. Connectors shall be coupled to counterpart connectors by means of bayonet oupling rings. Coupling shall be accomplished by clockwise rotation of the coupling ring; uncoupling by co s are fully ngaged and the coupling ring is in the locked position. cunterclockwise rotation. The bayonet coupling rings shall be knurled to provide a gripping surface. Coupling pins on the receptacle shall have end surfaces of contrasting color to the coupling ring. The ends of the pins shall be visible through suitable holes in the coupling ring when the connectore MIL-DTL-26482H 323.4.4.2 Shell polarization. Polarization of connectors shall be accomplished by matched integral keand keyway(s) of counterpart connectors. The polarization of counterpart connectors shall takbefore coupling rings are engy(s) e place aged, and before any pin contacts can touch the opposing insert face or ocket of the counterpart connector. s 3.4.4.3 Lubrication. Bayonet coupling slots shall be coated with a suitable lubricant. Features which are intended to provide potting compound anchorage shall be free of lubricant. Accessory threads of seri 1 shall be coated with a suitable lubricant. es3.4.4.4 Engagement seal. Connectors shall contain sealing means so that engaged connectors comply with the requirements specified herein. The design of the seal shall be such that in mated onnectors all paths between adjacent contacts and between contacts and shells are eliminated. There hall be interfacial mating of the engaged connector insert to provide dielectric under compression of .005 ch (0.13 mm) minimum. 3.4.4.5 Protective covers and storage receptacles (series 1)csin . When mated to counterpart connectors, e protective covers and storage receptacles shall maintain the connector free of moisture, prevent air akage, and comply with the applicable requirements of this specification. 3.4.5 Wire sealingthle . 3.4.5.1 Classes E and F connectors (series 1) . Class E and F connectors, except MS3112, MS3119, S3122 and MS3127 shall be provided with a wire-sealing resilient grommet and gland nut capable of ealing on wires of the sizes specified in table II. 3.4.5.1.1 Solder contact connectors (series 1)Ms . Class E solder contact connectors shall be provided with a removable resilient gromme hall be designed to fit firmly against the rear face of the insert and around each contact and wire termination so that any air path from each contact termination to all other term ielectric material under compression of .005 in (0.13 mm). 3.4.5.1.2 Crimp contact connectors (t and retaining feature. The grommet sinations and the shell is interrupted by dch minimumseries 1). Crimp contact c ed with an integral grommet and insert. 3.4.5.2 Class P connectors (series 1)onnectors shall be provid. ctors shall be provided with a plastic potting form suitable to accept and bon MIL-PRF- erial. Ins connectors shall be so designed that potting material will adhere insert wi 3.4.5.3 Class H connec eries 1) Class P conned to 8516 potting mat erts of class P to the shell and thout treatment by the user. tors (s . Class H connectors shall not be supplied with wire sealing grommet; however, the shells and insert gned that 6 potting material will adhere to the insert withou 3.4.5.4 Class J connec (series 1)s shall be so desi MIL-PRF-851t treatment by the user. tors . ors shall h a resilient gland and gland nut capable of sealin appropri d multi-conductor cables. 3.4.5.5 Grommet sealin ries Class J connect be provided witg on ate single-jacketeg plugs (se 1). The grommets of classes E and F connectors shall be designed to accept sealing lugs in accordance with M 3187 or MS27488, in lieu of wire where unwired co d in gs Sntacts are employed. Fifteen percent of the number of contacts but not less than 1, shall be includethe unit package. Unless otherwise specified, connectors shall be supplied with grommet sealing plu(see 6.3). MIL-DTL-26482H 333.4.5.6 Wire sealing members (rear grommet) (series 2, classes L, R, and A). The wire sealing member shall provide aling fo , and shall not be removable from the shell. The seal sh mplemen ng the minimum OD or a full complement of wire approachi D. 3.4.5.7 Grommet seali plugs (serie , and A) suitable se r diameters listeoverall wireccept a fulld in table IIf wire approall a cong the maximum Ot o aching s 2, classes L, R . Grommet sealing plugs for unused contact cavities shall be in ce 88. s shall be for use in both connector plu nd recept rcent of th ntacts, but not less than 1, shall be enclosed e unit pac herwise sp tors shall be supplied with grommet sealing plu see 6.3). 3.4.6 Receptacle mouaccordangs awith MS3187 or MS274acles. Fifteen pe The same sealing pluge number of co in th kage. Unless ot ecified, connecgs (nting. Recept all be one of the following as specified (see 3.1): a. Flange mounting b. Jam nut mounting c. Solder mount 3.5 Intermateability and interchangeabilityacle mounting shing . 3.5.1 Intermateability. Connectors conforming to this specification shall be intermateable. When different series of connectors or different types of contacts (crimp or solder) are used in a mated paconnectors, the minimum performance requirements (temperatuir of re, sealing, etc) shall be met. 3.5.2 Interchangeability . All connectors and accessories having the same MS standard PIN shall be ompletely interchangeable with each other with respect to installation (physical) and performance unction) as specified herein. 3.6 Performac(fnce. Conneless otherwctors specishall pe s follows wh nditions and tests specified. Un ise fied R and A conn rformance requirements of the class L 3.6.1 Maintenan ng (crimp contact ectors)rform a, class en subjected to the coectors must meet the pe. ce agi conn . s spe 4.6.2, all crimp contact connectors e capable of orming to this specification. Contact retention (see 4.6.32), shall be performed on contac ubject the mainten aging test. 3.6.2 Mating and unmating s (c ing torque) (s s 1) After being tested a cified in shall b confts s ed to ance force oupl erie . When tested a ecified in 4.6.3, mating and unmating of protective cove nd of counter nnectors with the maximum number of contacts installed, shall mee torque uirements in e V. s sprs a part cot the req tablMIL-DTL-26482H 34E V. Coupling torque (series 1TABL ). Torque, inch pounds (Newton-meters) Shell size Maximum Minimum engagement and disengagement disengagement 8 8 (.904 N-m) 10 12 (1.36 N-m) 1 (.113 N-m) 12 (.226 N-m) 16 (1.81 N-m) 2 14 20 (2.26 N-m) 16 24 (2.71 N-m) 18 4 (.452 N-m) 28 (3.16 N-m) 20 (.678 N-m) 32 (3.61 N-m) 6 22 36 (4.07 N-m) 24 44 (4.97 N-m) 7 (.791 N-m) 3.6.3 Mating and unmating forces (coupling torque) (series 2). When tested as specified in 4.6.4, completely assembled connectors, except RFI plugs, shall meet the torque requirements in table VI. M 20 percent. ating and unmating forces for RFI shielded plugs shall not exceed the values specified in table VI by more thanTABLE VI. Coupling torque (series 2). Torque, inch-pounds (Newton-meters) Shell size Maximum engagement and Minimum disengagement disengagement 8 8 (.904 N-m) 10 10 (1.13 N-m) (.113 N-m) 1 12 14 (1.58 N-m) 2 (.226 N-m) 14 17 (1.92 N-m) 16 23 (2.60 N-m) 18 26 (2.94 N-m) (.452 N-m) 4 20 31 (3.50 N-m) 6 (.678 N-m) 22 24 (.791 N-m) 38 (4.29 N-m) 7 3.6.4 Contact resistance (series 1). When tested as specified in 4.6.5, solder contacts in the mated condition or mated contacts consisting of crimp contacts mated to solder contacts shall meet the contacresistance requiremt ents in table VII. Crimp contacts in the mated condition shall meet the contact re sistance requirements in accordance with SAE-AS39029. MIL-DTL-26482H 35nta ts (TABLE VII. Co ct resistance limi series 1). Maximum voltage drop C Wire barrel size Wire size ial mv Afte rrosion mv onnector class Init r co 24 20 22 20 45 55 55 65 45 55 20 45 16 18 16 45 50 55 60 55 E, F, J, and P 12 14 45 55 12 50 60 Maximum voltage drop Initial After corrosion Avg Indiv Avg Indiv mv mv mv mv H 16 20 16 12 70 65 65 90 80 80 165 165 165 20 12 10595 95 3.6.5 Contact resistance (series 2). 3.6.5.1 Contact resistance (series 2, class L). When tested as specified in 4.6.6, resistance of mated pad in table VIII. irs of pin and socket contacts shall be such that the potential drop measured with the specified test current will not be greater than the potential drop liste TABLE VIII. Contact resistance limits (series 2). Contact Wire size Maximum voltage drop mv 24 45 20 22 20 45 55 16 20 18 16 45 45 50 12 14 12 45 50 3.6.5.2 Contact resistance (series 2, classes H and N). When tested as specified in 4.6.6, the contaresistance of receptacle shall not exceed that specified in table VIII by more than 700 percent. ct 3.6.6 Insulation resistance (series 1). Insulation resistance versus temperature shall be as shown on figure 1. MIL-DTL-26482H 363.6.6.1 Insulation resistance at ambient temperature (series 1). When connectors are tested as specified in 4.6.7.1 at 25ºC, the insulation resistance shall be greater than 5,000 megohms. 3.6.6.2 Insulation resistance at elevated temperature – short time (series 1). When connectors are tested as specified in 4.6.7.2 at 125ºC, the insulation resistance shall be greater than 3 megohms. 3.6.6.3 Insulation resistance at elevated temperature – long time (series 1). When connectors are tested as specified in 4.6.7.3 at 105ºC, the insulation resistance shall be greater than 12 megohms. 3.6.7 Insulation resistance (series 2). Insulation resistance versus temperature shall be as shown on figure 3. 3.6.7.1 Insulation resistance at ambient (series 2). When connectors are tested as specified in 4.6.8.1 at3.6.7.2 Insulation resistance (high temperature) (series 2) 25ºC, the insulation resistance shall be greater than 5,000 megohms. . When connectors are tested as specified in 4. 6.8.2 at 200ºC (classes H, N, and W, 175°C), the insulation resistance shall be greater than 500 megohms. 3.6.8 Dielectric withstanding voltage (series 1). When tested as specified in 4.6.9.1 and 4.6.9.2, connectors shall show no evidence of breakdown or flashover when subjected to the test voltages and altitudes specified. 3.6.8.1 Working voltages. Maximum working voltages are as shown in table IX. TABLE IX. Working voltage, ac, rms (series 1 and 2). Condition Service rating I Service rating II Service rating shielded Sea level 600 1,000 500 volts, dc 70,000 ft 300 450 -- 3.6.9 Dielectric withstanding voltage (series 2). 3.6.9.1 Dielectric withstanding voltage (sea level). When tested as specified in 4.6.10.1, maximum akage current shall be 2 milliamperes and there shall be no evideleTnce of electric breakdown or flashover. he service rating is on the applicable military standard. 3.6.9.2 Dielectric withstanding voltage (altitude). When tested as specified in 4.6.10.2, maximum le akage current shall be 2 milliamperes and there shall be no evidence of electric breakdown or flashover. 3.6.10 Contact insertion and removal forces (crimp contact connectors) (series 1). The contact insertion forces and the forces required to remove unlocked contacts shall not exceed the values specified in table X when subjected to the maintenance aging test (see 4.6.11). TABLE X. Contact insertion and removal forces (pounds, maximum) (series 1). Contact size Insertion and removal forces 20 20 16 20 12 30 MIL-DTL-26482H 373.6.11 Contact insertion and removal forces (series 2) (except class H). When tested as specified in 4. shall 6.11, the insertion force for any individual contact shall not exceed 15 pounds. The removal forcenot exceed 10 pounds. 3.6.12 Thermal shock (series 1). When tested as specified in 4.6.12, there shall be no evidence of mage detrimental to the operation of connectors. da 3.6.13 Thermal shock (series 2). After testing as specified in 4.6.13, connectors shall meet the suer pressure (series 1) (applicable to solder-type contact connectors, class E receptaclesbsequent test requirements listed in the applicable test sequence table. 3.6.14 Wat and class J plugs). When tested as specified in 4.6.14, receptacle inserts and panel seals shall show no led nd the insulation resistance of mated connectors at the end of 48 hours, while still mersed, shall be 100 megohms minimum. After removal of unmated connectors from the immersion ta3.6.15 Air leakage (series 1)akage. In addition, there shall be no evidence of leakage at the connector interface of mated connectors, neither shall there be evidence of water penetration into the J adapters of the mated anunmated plugs; aimnk, the insulation resistance shall be 100 megohms minimum. . 3.6.15.1 Solder contact receptacles (except class H), through-bulkhead receptacles, class J plugs, stowage, receptacles, and protective covers. When tested as specified in 4.6.15, the air leakage rate shall be no greater than 1 atmospheric cubic inch pe -3 3r hour (4.55 x 10 cm /s), including the flange O-ring seal of all jam nut receptacles. 3.6.15.2 Class H connectors. When tested as specified in 4.6.15.2, the air leakage rate shall not exceed 0.1 micron cubic foot per hour (1 x 10-6 cm3/s). The specified leakage rate shall apply only through the connector and not through the flange and mounting surface area, unless solder mounted. 3.6.16 Air leakage (series 2, classes H and N). When receptacles are tested as specified in 4.6the leakage rate shall not exceed 0.1 micron cubic foot per hour (1 x 10.16, -6 cm3/s) when subjected to a differential pressure of 14.7 ± 0.3 pounds force per square inch (lbf/in2), 1.033 ± .02 kilograms per square centimeter (kg/cm2). 3.6.17 Durability (series 1). When tested as specified in 4.6.17, counterpart connectors shall show nomechanical or electrical defects detrimental to the operation of the connector, after 500 cycles of coupling and uncoupling. 3.6.18 Durability (series 2, except RFI plugs). When tested as specified in 4.6.18, connectors shall meet the subsequent test requirements after 500 cycles of mating and unmating. 3.6.18.1 Durability (series 2) (RFI plugs). When tested as specified in 4.6.18, connectors shall methe subsequeet nt test requirements after 250 cycles of mating and unmating. 3.6.19 Salt spray (corrosion) (series 1). When tested as specified in 4.6.19, unmated connectors, stowage receptacles, prote nd acce of basic metal, which will affect performance whe d in accorda onnector shall meet all subsequent test requireme 3.6.20 Salt spray (corro ) (series 2)ctive covers an evaluatessories shall show no exposure nce with SAE-AIR4789 . The cnts. sion . When tested as specified in 20, there shall be no exposure of the basic metal which will affect performance en evaluated in accordance with SAE-AIR4789. The connector shall meet all su nt test requirements. 4.6. whbsequeMIL-DTL-26482H 383.6.21 Vibration (series 1). no loo When tested as ified in 4.6.21, mated connectors shall not be damaged and there shall be sening of parts. Counterpart connectors shall be retained in full enspecgagement, and there shall be no interruption of electrical continuity longer than 10 microseconds. 3.6.22 Random vibration (series 2). When tested as specified in 4.6.22, mated connectors shall not be da maged and there shall be no loosening of parts. The coupling ring shall not loosen and there shall beno interruption of electrical continuity longer than 1 microsecond. 3.6.23 Shock (specified pulse) (series 1). When tested as specified in 4.6.23, mated connectors shall not be damaged and there shall be no interruption of electrical continuity longer than 10 microseconds. 3.6.24 Shock (specified pulse) (series 2). When tested as specified in 4.6.24, mated connectors shall not be damaged and there shall be no interruption of electrical continuity longer than 1 microsecond. 3.6.25 Humidity (series 1). When tested as specified in 4.6.25, mated connectors shall maintain an nsulation resistance of 100 megohms or greater at 25ºC. i 3.6.26 Humidity (series 2). When tested as specified in 4.6.26, insulation resistance shall be at le100 megohms. The connector shall meet the subsast equent tests listed in the applicable test sequence table. 3.6.27 Fluid immersion (series 1). When tested as specified in 4.6.27, connectors shall mate within theforces specified in table V. 3.6.28 Fluid immersion (series 2). 3.6.28.1 Classes H, L and N. After being tested as specified in 4.6.28.1, connectors shall mate prop d shall meet the requirements of all subsequent tests. 3.6.28.2 Retention serly an ystem fluid immersion (series 2). When tested as specified in 4.6ements of subsequent tests as specified herein. (Effects of fluids.28.2, connectors shall meet the requir on resilient sealing members shall not be a consideration of this tes 3.6.29 etention (se ept class H)t.) Insert r ries 1) (exc . When tested as specified in 4 s shall not be disloca m their orig The eff tial shall(5.3 kg/cm 3.6.29.1 Insert retent ).6.29, insertted fro inal positions. ective pressure differen be 75 lbf/in2 2). io Hn (series 1) (class . Wh d in 4. shall not be disclosed from th The eff rential (14.06 kg/c 3.6.30 I (series 2, class L)e en tested as specifiective pressure diffe6.29, class H inserts shall be 200 lbe original positions. f/in2 m2). nsert retention . When connectors are tested as specified 6.30, inserts shall withs an applied minimum pressure of 150 lbf/in2 (10.54 kg/cm2). 3.6.30.1 rt retention (series 2, classes H and in 4.tandInse N). When tested ar direction of 100 lbs specified in 4.6.30.1, receptacles shall sup fferential pressure in eithe f/in2 (7.03 kg/cm2) for shell sizes 8 throug ic loading fo m of 5 minutes. shall meet trequireme the applicab nce table port a minimum dih 24 stat r a minimu The receptacle he subsequent test nts of le test seque . MIL-DTL-26482H 393.6.31 Gage location and retention (crimp type contacts). The axial location of serie in contacts and series 2 socket conta sured as spe ified in 4.6.31 using test gages in accordanc h MS3460, MS3461, or MS3462, as applicable. Gage location measurements shall fall ithin the range specified on figure 5. Test gages in accordance with MS3460, MS3461, or MS3462, as apd in s while under load shall not exceed 0.015 inch .38 mm). s 1 ppin and cts shall be mea ce witwplicable, shall be retained in the pin and socket cavities of series 1 and series 2 crimp contact connectors, and in the rear termination cavities of class N connectors, with the axial loads specifietable XI applied. The axial displacement of the test gage(03.6.32 Contact retention. When tested as specified in 4.6.32, contacts shall be retained in their inserts t the axial loads specified in table XI. The axial displacement of crimp contacts with respect to the shell sh TABLE XI. Axial loads for contact retentionaall not exceed .012 inch (0.30 mm) while under load with the accessory tightened or .015 inches (0.38 mm) while under load with the accessory removed. The axial displacement of solder contacts withrespect to the shell shall not exceed .012 inch (0.30 mm) within one minute after the load has beenremoved. . Axial load (pounds-minimum) Contact size Series 1 Series 2 20 15 20 16 25 25 12 25 30 8 40 40 3.6.33 Contact engaging and separating forces (series 1). When tested as specified in 4.6.33, socket ontacts shall comply with the engagement and separation forces in table XII. 3.6.34 Probe damage (series 1)c. When tested as specified in 4.6.34, socket contacts shall meet the requirements of 3.6.33. 3.6.35 Cover chain, tensile strength (series 1). When ecified in 4.6.35, protective covers with chains shall withstand a 25-poun ithout damage. 3.6.36 Altitude immersio ries 2tested as spd (11.34 kilogram) tensile test wn (se ). When connectors are tested as spe0 megohms and the connector shcified in 4.6.36, the insulation resistance shall not be less 1,00 all show no evidence of breakdown, flashover or co when subjected to a volts root mean square (rms). Maximum leakage current during the dielectric withs shall be 2 milliamperes. 3.6.37 Temperature life (series 2, class H) thanrona minimum of 1,500 tanding voltage test. Follo cified in 4.6.37, the contact resistance shall meet the requirements of 3.6.5.2. 3.6.37.1 Temperature life h contact loading (se d W)wing the test as spe wit ries 2, classes N an . When tested as specified in , the contacts sh cifie n on figure 13 and there shall be no4.6.37.1 all maintain their spe d locations as show electrical discontinuity in excess of 1 microsecond. 3.6.38 Ozone exposure (series 2). When connectors are tested as specified in 4.6.38, there shall be o evidence of cracking of materialperformance of the connectors in n s or other damage that will adversely affect the subsequent the applicable test sequence. MIL-DTL-26482H 40 TABLE XII. Contact engaging an rces (series 1)d separating fo . Initial Minimum separation average engagement force (ounces) force (ounces) force (ounces) Maximum Maximum engagement Mating end size SAE-AS31971 pin SAE-AS31971 pin SAE-AS31971 pin Minimum diameter Maximum diameter Maximum diameter 12 30 3 24 16 2 30 24 20 0.7 12 18 After conditio g ninMinimseparforce (o ) Maximuaverage engaforce (ounc Maximum engagement force (ounces) um ation uncesm gement es) Mating end size Minimum SAE-AS31971 pin Maximum diameter SAE-AS31971 pin Maximum diameter SAE-AS31971 pin diameter 12 2.5 29 36 16 1.5 29 36 20 0.6 14 22 3.6.39 Shell to shell conductivity ( series 2, except class A). When tested as specified in 4.6.39, the probes shall not puncture or otherwise damage the conn nd the maximum measured potential drop across as all be a a. With spring f e millivolt L, R and W. b. Without spri 200 milli 3.6.40 Insert gromme ries 2, class L)ector finish asemblies sh s follows: ingers: Fiv s for classesng fingers: volts. t bonding (se . Specimens of the insert grommet bonded assembly an re d the insert interfacial seal bonded assembly shall be subjected to the test specified in 4.6.40. Theshall be evidence of cohesive failure of the insert face seal, grommet or insert material rather than complete adhesive failure of bond. The test shall be conducted using only the complete insert assemblies in their final form prior to assembly into the connector shell. 3.6.41 External bending moment (series 2, class L). When tested as specified in 4.6.41 using the pplicable bending moment shown in table XIII, connectors adshall show no evidence of damage etrimental to their normal operation nor shall there be any interruption of electrical continuity. MIL-DTL-26482H 41 TABLE XIII. External bending moment (series 2). Shell size Bending moment, inch-pounds (N-m) 2 inch lever 8 55 (6.2 N-m) 10 61 (6.9 N-m) 12 115 (13.0 N-m) 14 134 (15.14 N-m) 16 154 (17.40 N-m) 18 199 (22.48 N-m) 20 245 (27.68 N-m) 22 270 (30.50 N-m) 24 328 (37.04 N-m) 3.6.42 Pin contact stability (series 2, class L). When tested as specified in 4.6.42, the total disp acement of the contact tip end shall not exceed the amount shown in table XIV. l TABLE XIV. Contact stability (series 2). Contact size Total displacement in inches (mm) 1/ 2/ 20 .038 (0.96) 16 .052 (1.32) 12 .062 (1.57) 1/ Dimensions are in inches. 2/ Metric equivalents are given for information only. 3.6.43 RFI shielding (series 2, RFI plugs only, except class A). When tested as specified in 4.6.43, theRFI shielding capabilities of the shells shall not be less than that specified in table XV at the specified frequencies. TABLE XV. RFI shielding effectiveness. Frequency MHz Leakage attenuation dB 100 65 150 60 200 60 300 55 400 55 600 50 800 45 1,000 45 3.6.44 RFI finger spring force (series 2, class L, except class A). When tested as specified in 4.6.44the plug and receptacle axial mating force shall be as specified in table XVI. , MIL-DTL-26482H 42TABLE XVI. RFI finger spring force (series 2, class L). Axial force Shell size Maximum lbs Minimum lbs 8 and 10 15 (6.8 kg) 12 and 14 20 (9.07 kg) 16 thru 24 30 (13.60 kg) 2 (.907 kg) .6.45 Insertion and removal tool abuse (series 2, classes L and N)3 . When tested as specified in 4.6.45, there shall be no damage to the contacts, the connector insert, or the contact retaining mechanism. The connectors shall meet the requirements of subsequent testing. 3.6.46 Contact walk-out (series 2, classes L and N). When tested as specified in 4.6.46, contacts shall not become dislodged from their normal position. 3.6.47 Accessory thread strength (series 2, class L). When tested as specified in 4.6.47, the a ccessory threads and portion of the connector that accepts connector accessories shall be capable ofwithstanding torques as specified in table XXVIII. 3.6.48 Impact (drop ) (qualification only) (series 2 only). When connectors are tested as specified in .6.50, there shall be no breaking or cracking of inserts, bending of pins, nor any other damage which pr ing 3.6.49 Solder contact plating thickness (except class H) (series 1)4events the connectors from being mated or renders them unfit to continue further testing. Any chippof the inserts which affects its polarization or retention in the shell shall be considered a failure. . When measured as specified in .6.51, the plating thickness, except for corners, shall be as specified in 3.3.5. All other plated surfaces hall be plated to a thickness to assure specified performance of the contact. perature cycling (series 1, solder contact with localized finish only) (except4s 3.6.50 Humidity-tem class H). When tested as specified in 4.6.52, there shall be no evidence of defects detrimental to tl performance. he 3electrica .7 Marking. .7.1 3 es 2)Connector marking (series 1 and seri . Connectors and accessories shall be clearly and e s ap p arking shall remain legible following completion of all inspections. Marking shall be o cter dition, all connectors shall be marked round the periphery of the shell ectors as having the rear lease contact system. The loc d (see 3.1). .7.2 ert markingp rmanently marked with the manufacturer's name or trademark, date code, and the PIN (see 1.1.1), aplicable. Stamping should be in accordance with MIL-STD-1285 where space permits, in the locationecified (see 3.1). Msn nfading. The characters shall be a minimum of .037 inch (0.94 mm) in height. The minimum charaheight does not apply to shell sizes 8, 10, and 12. Each connector shall be marked on the shell or coupling ring with manufacturer’s name or trademark, the appropriate MS PIN, if applicable (see 1.2.1 nd 3.1), and the date of the manufacture (year and week). In adaa with a blue color band to identify the conncifiere ation of the blue band shall be as spe3 Ins . Inserts Raised or depressed hshall be marked in accordance with MIL-STD-1669.c aracters shall not be used on mating faces. MIL-DTL-26482H 433.7.2.1 Contact designation. Contact locations shall be designated by identifiable characters of contrasting color on the front and rear faces of the insert or insert assembly. Positioning and arrangement of the characters shall be such that the appropriate contact cavity be readily identifiable. On e rear face of solder contact inserts, those individual contact designations may be omitted where space lim3.7.3 Grommet markingthitations render identifiability marginal. Eighty percent of the characters on any face of the connectors shall remain identifiable after completion of the tests specified in the qualification tables. . Wire openings on the rear face of grommets shall be marked with legible ch it n aracters corresponding to the insert contact designators. On grommets of solder contact connectorsis permissible to identify, where space limitations dictate, only those wire openings which are located othe vertical centerline. 3.7.4 JAN and J marking. The United States Government has adopted and is exercising legitimate control over the certification marks "JAN" and "J", respectively, to indicate that items so marked or identified are manufactured to, and meet all the requirements of specifications. Accordingly, items acquired to, and meeting all of the criteria specified herein and in applicable specifications shall beacertification mark "JAN" except thar the t items too small to bear the certification mark "JAN" shall bear the tter "J". The "JAN" or "J" shall be placed immediately before the PIN except that if such location would pl cated e above or below the PIN. Items furnished under contracts or orders which either permit or quire deviation from the conditions or requirements specified herein or in applicable specifications shall n" gistration Number 1,586,261 for the certification mark “J”. leace a hardship on the manufacturer in connection with such marking, the "JAN" or "J" may be loon the first linreot bear "JAN" or "J". In the event an item fails to meet the requirements of this specification and the applicable specification sheets, the manufacturer shall remove completely the military PIN and the "JANor the "J" from the sample tested and also from all items represented by the sample. The "JAN" or "J" certification mark shall not be used on products acquired to contractor drawings or specification. The United States Government has obtained Certificate of Registration Number 504,860 for the certification mark "JAN" and Re3.8 Workmanship. Connectors and accessories shall meet all design dimensions and intermateability ll be on the quality of the olded dielectric retention system parts. 3.9 Chrequirements of this specification. Loose contacts, poor molding fabrication, loose materials, defective bonding, damaged or improperly assembled contact, peeling, or chipping of plating or finish, galling of mating parts, nicks and burrs of metal parts and post molding warpage will be considered adequate basis for rejection of items of quality inferior for the purpose intended. Emphasis shamange effectivity. Unless e previouotherwise sp tivity and/o ualifying activity, a s revision of MI come effective within 3 months from the of the latest revision. QPL listed Manufacturers who ha erns regarding possible requirements, sh ntact the Qualifying Activity for clarificati 3.10 Dispoecified by the preparing acL-DT 2 shall ber the qll changes from thdate of publicationL-2648ve concchanges to retention reporting ould coon. sition of stock. Unless otherwise specified by the preparing activity and/or the qualifying c ectors r a tivity, qualified manufacturers and their selling agents or distributors may ship from stock; connand accessories which were manufactured in accordance with the previous revision of MIL-DTL-26482 foa period of 18 months from the date of the latest revision. 3.11 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and externally. Tin content of connectors, their components and solder shall not exceed 97 percent, by masTin shall be alloyed with a minimum of 3 percent lead, by mass (see 6.13). s. MIL-DTL-26482H 44ssification of inspection4. VERIFICATION 4.1 Cla . The inspection requirements specified herein are classified as llows: b. Conformance inspection (see 4.4). t for deliveryfoa. Qualification inspection (see 4.3). 4.1.1 Inspection of produc . Inspection of product for delivery shall consist of Groups A and B inspection. 4.1.2 Inspection conditions. Unless otherwise specified, tests and examinations required by this pecification shall be performed under any combination of conditions within the following ranges. Any sp4.1.secified condition shall not affect the other two ambient ranges. Temperature: 15º to 35ºC (59º to 95ºF). Relative humidity: 30 to 80 percent. Barometric pressure: 650 to 800 mm of mercury 2.1 Test equipment and inspection facilities. Test and measuring equipment and inspection ion shall e establi tion easuring and test equipment shall be in accordance with CSL Z540.1. 4.1.2.2 facilities of sufficient accuracy, quality and quantity to permit performance of the required inspectb shed and maintained by the supplier. The establishment and maintenance of a calibrasystem to control the accuracy of the mN Established reliability assurance program. A reliability assurance program shall be established y the tion. 4.1.2.3 Statistical process control (SPC)and maintained in accordance with MIL-STD-790. Evidence of such compliance shall be verified bqualifying activity of this specification as a prerequisite for qualification and continued qualifica . A SPC program shall be established and maintained in accord y as a rerequisi4.1.3 Aance with EIA-557. Evidence of such compliance shall be verified by the qualifying activitp te for qualification and retention of qualification. ssembly plants. Assembly plants must be listed on or approved for listing on the applicable ualified Products List. The qualified connector manufacturer shall certify that the assembly plant is ap f hen there is cause for jection. Assemblies produced at the assembly plant shall be subjected to inspection to assure that the assem Quality control quirements, including Government inspection surveillance, shall be the same as required for the qualifi4.2 FunQproved for the distribution of the manufacturer’s parts. The assembly plant shall use only piece partssupplied by the qualified connector manufacturer. No testing other than visual examination is required ocertified piece parts obtained from the qualified connector manufacturer, except wrebly process conforms with that established at the qualified manufacturing plant.reed connector manufacturer. gus resistance certification. Certification of method 508.4 of MIL-STD-810 is required ee 3.3.1(s ). 4.3 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to d procedures normally used in roduction. After receipt of the letter of authorization from the activity responsible for qualification, the applic nment inspe e qualifthe Government (see 6.5) on sample units produced with equipment anpant shall submit to the qualifying activity three copies of his test reports (certified by the Goverctor indicating the extent to which the tests were witnessed), together with samples required by thying activity. MIL-DTL-26482H 454.3.1 Qualification of additional connectors. For connectors of the same series which have identic usly qualifi validate the differing feature(s). In addition, connectors which differ in shell size shall be subjected to the following tests and the results ivity: Testal contacts and differ only in shell size and/or configuration from those which have been previoed (or are currently being qualified), the supplier’s test report need only provide test data necessary toshall be forwarded to the qualifying actRequirement paragraph Test paragraphExamination of produ 3.1, 3.3, 4.6.1 Operating forces 4.6.4 Final examination of product External bending mom (series 2, class L only) 4.3.2 Qualification samplesct 3.5, 3.7 and 3.83.6.3 3.7.1 4.6.49 3.6.41 4.6.41 ent. Samples of each class for whi fication is desired shall be tested in the sequence specified in table XVIII or table X ble. Each connector subjected to qualification testing shall be provided with a counterpart hose tests requiring mating assemblies. The counterpart connectors provided for this purp e new, previously qualified connectors or new connectors mitted for qualification facturers not producing mating connectors shall submit data tantiating that tests we ith approved counterpart connectors. Specific details on preparation of samples s ws: ch qualiIX, as applicaconnector for tose shall b sub testing. Manusubs re performed whall be as follo 4.3.2.1 Series 1. A sufficient number of connectors shall be supplied to provide a minimum of 110 contact cavities of the size of contacts for which qualification of the crimp contact retention feature is esired. 4.3.2d.1.1 Wire-to-contact assembly. Where wired contacts are required, terminations shall be a ccomp4.3.2lished as applicable (see 4.3.2.1.1.1 and 4.3.2.1.1.2). .1.1.1 Solder contacts. Solder contacts wire terminations shall be tested in accordance with D-202, method 208. MIL-ST4.3.2.1.1.2 Crimp contacts . A class I crimping tool conforming to M22520/I-01 or M22520/2-01 in accorda 4.3.2nce with MIL-DTL-22520 shall be used as applicable. .1.2 Connector assemblies (classes E, F and P). Three complete connector assemblies, class E all-mount receptacles and class F straight plugs, with insert arrangements in the densest configuration eparate act connectors. Crimp contacts shall e et contacts in the receptacle. Both halves shall be wired with approximately 3 feet (0.91 m) of wire approaching the es shall have socket contacts in the plug and pin contacts in the wofsamples are required for crimp-contact connectors and solder-cont each voltage rating for which qualification is desired, in each shell size, shall be provided. Sb supplied but shall not be installed in connectors submitted for qualification testing. a. One sample shall have pin contacts in the plug and sock table XVIII, group 1. mininimum OD specified in table II. These samples shall be subjected to the tests in b. The other samplreceptacle. Both halves shall be wired with approximately 3 feet of wire approaching the maximum OD specified in table II. These samples shall be divided into two groups and shall be subjected to all the tests in table XVIII, groups 2 and 3. One group of connectors is to be assigned to each test sequence. MIL-DTL-26482H 464.3.2.1.3 Connector assemblies (class H)c. Qualification of these samples shall admit qualification of other types and the balance of insert patterns in classes E, F and P by similarity. If qualification of class E or F is not sought, samples of class P shall be substituted for class E or F in the foregoing, except that nominal gage wire may be used. . Three class H receptacles, with insert arrangements in the denses configurat e rating for which qu e ll size and conta l be p er wi art clas pl a. halves shal ith appr y 3 feet of w f nominal gage. b. The samples s ded into th qual groups ll be s t s in table X s 4, 5, and 6, one group of ch test sequ lification samples it qualification es and the insert patte n class H b ty. 4.3.2.1. nnector a (class J)t ion of each voltag alification is dtsired, in each shect style shal rovided, togeth th counterp s E straigh ugs. All l be wired w oximatel ire ohall be divi ree e and shacoubjected to all the neesteaVIII, groupence. Quannectors to be assigill add to of these w my similariof other typ balance of rns i4 Co ssemblies . mated pair conneach shell the tes le XVIII, group 10. cification. If not, class J assemblies shall be subjected to all of the tests in table XVIII, test groups 1 and 2. TABLE XVII. Test cylinder OD sizesOne in taof class J ector assemblies, in size, shall be subjected to ts b a. The connectors need not be wired but shall be assembled using a solid polychloroprene r cylinder of suitable length and OD in table XVII. The Shore A durometer of the test cylinde shall be from 75 to 85. b. Qualification of these samples will admit qualification of all class J assemblies if class E are being qualified at the same time or have previously been qualified to this spe . Shell size Diameter ± .016 inch (± 0.41 mm) 8 .214 (5.43) 10 .250 (6.35) 12 .384 (9.75) 14 .462 (11.73) 16 .596 (15.14) 18 .646 (16.1) 20 .681 (17.30) 22 .716 (18.20) 24 .817 (20.75) 4.3.2.1.5 Solder, contacts (series 1). A sufficient number of series 1 solder contact connectors and ontacts shall be provided as follows: c a. Fifty of each socket contact configuration shall be subjected to the tests in table XVIII, group 7. Sockets which are not completely assembled prior to installation in the insert (e.g. class H, socket style), may be provided and tested in connectors. MIL-DTL-26482H 47act ish c. Eight pin contacts and eight socket contacts (localized finish only) (see 3.3.5.1.2) of each configuration, supplied assembled in the insert, assembled in the insert, shall be provided. Samples shall be wired as required and subjected to the tests in table XVIII, group 11. 4.3.2.1.6 Protective coversb. Two pin contacts and two socket contacts, uninstalled but representative of each cont configuration supplied assembled in the insert, shall be provided for inspection of contact fin in accordance with 3.3.5 and 4.6.51 (table XVIII, group 12). . Two protective covers of each shell size with mating class E connectors, shall be subjected to the tests in table XVIII, group 8. 4.3.2.1.7 Stowage receptacles. Two stowage receptacles of each size, with mating class E connectors, shall be subjected to the tests in table XVIII, group 8. 4.3.2.1.8 Crimp connectors. Connectors supplied in accordance with 4.3.2.1 shall be subjected to the tests specified in table XVIII, group 9. 4.3.2.2 Series 2. 4.3.2.2.1 Connector assemblies (classes L and W). Seven complete connector assemblies shall be provided for test groups 1 through 7 in table XIX. Samples for group 7 shall be specified in 4.3.2.2.4. Connectors shall be wired with approximately three feet of wire and provided with suitable backshells. A class I crimping tool conforming to M22520/1-01 or M22520/2-01 shall be used for termination of the wire to the crimp contacts. One RFI plug of each size together with a suitable counterpart receptacle (one with inserts and bayonet pins and one without) shall be provided for test groups 6 and 8 in table XIX. Group 10, consisting of 12 mated connector assemblies to go thru fluid immersion (1 assembly per fluid). The full complement of contacts shall be installed but need not be wired. Individual sample assembly shall be as follows: Test GroupWire diameter (approaching)Plug ContactsReceptacle Contacts Backshells (Plugs and receptacles)1 Minimum Socket Pin 90º 2 Maximum Socket Pin 90º 3 Minimum Pin Socket Straight with strain relief 4 Maximum Socket Pin 90º 5 Minimum Pin Socket Straight 6 Maximum Pin Socket Straight 7 Maximum Pin Socket Straight with strain relief 8 As required Socket Pin None 4.3.2.2.1.1 Intermateability samples (classes L and W). One complete serie